While browsing (Firefox 8.0 under Ubuntu 11.10) I sometimes get a popup saying (freely translated from German):
strongcoin.com:443 uses an invalid certificate.
The certificate is only valid for following names:
*.heroku.com, heroku.com
(Error code: ssl_error_bad_cert_domain)
[...]
The strange thing is: I was not on strongcoin.com and have not been there for several days! I do have an account there. It happened now 3-4 time while not surfing on strongcoin.com, should I be worried about malware?
Sorry cannot attach screenshot. I could not reproduce, too